Hardt



(N0 Model.)

G. E. REINHARDT. TOOL HOLDER OSGILLATING DEVICE FOR PLANING MACHINES.No. 339.212,

Patented Apr. 6, 1886.

N. PETERS. PholwLflMgmphur, Washingtpm D4 1 NITE STATES PATENT OFFICEQGUSTAV EDMUND REINHARDT, OF LEIPSIC, GERMANY.

TOOL-HQLDER-OSCILLATING DEVICE FOR PLANlNG-MACHINES.

SPEIEIFIQATION forming part of Letters Patent No. 339,212, dated April6, 1886.

Application filed July 22, 1385. Serial No. 172,264. (No model.)

.To ctZZ whom it may concern.-

Be it known that I, GUSTAVEDMUND REIN- HARDT, a citizen of Germany,residing at Iieipsic, in the Empire of Germany, have invented a new anduseful Improvement in Tool- Holder-Oscillating Devices for Planing-Machines, of which the following is a full and exact specification.

This invention relates to improvements on planing-machines; and. itconsists in novel mechanism whereby a swinging motion is communicated tothe tool-holder. This will enable a double-edged cutter to cut or planeduring the forward as well as during the backward motion of the machine.

In theaccompanying drawings, Figure]. is a front view of a support of aplaning-machine. Fig. 2 is a cross-section of the same. Fig. 3 is a backview of the carriage, partly in section; and Figs. 4, 5, and 6 aredetails referred to in the following specification.

The cross-slide A is fitted upon the vertical slide I), attached to theupright frame of the machine not shown in the drawings.) Thiscross-slide A receives sidewise motion by means of the screw 0, operatedby the pawls bb arranged on the levers c c. Theselevers are connected tothe rod a, which receives motion in the usual manner. The arm 0 iselongated and connected by rod (Z with alever, e, placed upon a shaft,f, so as to be capable of turning freely upon the same. This shaftfissupported parallel to the feed-screw o, by bracketsff, attached to thevertical slide B. Close to the lever 6 there is firmly attached to theshaftfa disk, 9. This disk 9 is provided with studs h 71 capable ofbeing regulated and against which the lever e is made to strike, and tothus communicate the desired motion to the shaft 1". 'Upon the shaft fthe bevel-gear 2' is arranged, capable of sliding in a groove on saidshaft and meshing into a corresponding bevel-gear, 2", connectedtoawheel, it. (See Figs. etand 5.) One end of this bevel-gear t" issupported in a frame f that slides on the shaftf and straddles thebevel-gear The other ends or hubs of the wheels 2' and k are supportedin a lever, 'v, turning on a bolt, o, attached to the carriage D. Thisbolt 1: supports a wheel, k, that meshes into the wheel is. The wheel kis fastened upon the bolt r by means of the set- J screw n, Fig. 3, toregulate its exact position.

The carriage D is provided with a spindle, 0 having a fixed collar orhub, in, and a second k collar, 11, working on the threaded part of saidspindle o". The fixed collar or hub mis connected with the gear-wheelIt? by a rod, Z, and the hub or collar n is provided with a convexprojection, or, engaging a corresponding socket, 1), at the back of thetool-holder p. This rod Z forms the connecting-rod between the wheel kand the hub m, which is firmly attached to the spindle 0 as abovedescribed, and converts the rotary motion of the wheel k into areciprocating motion of the hub m or spindle 0. The hub 11 is held faston the threaded part of the spindle 0 and thus reeei ves thereciprocating motion from its spindle o By means of the threaded part ofthe spin dle 0 the hub a can be raised or lowered to correspond with theposition of the tool-holder p. The tool-holder 1) turns in sidebearings, 1" w on the carriage z.

The operation of the above described mechanism is as follows: Thecross-slide A, with carriages D t, and tool-holderp, receives sidewisemotion 011 the vertical slide B by the screw 0, operated by rod a in theusual manner. The motion of this rod a is commnnicated by arm 0 and rodd to lever e, which latter (by coming in contact with one or the otherof the studs h h gives an oscillating motion to the shaft f. This motiongiven to the shaft f is communicated by bevelgear 2' i and wheel k, tothe wheel k and from the latter by the connecting-rod Zto the spindle0", thus producing a reciprocating motion of the spindle. This motion isagain communicated by projection a to the toolholder 19, turning on thebearings r 0-, thus producing an oscillating motion of said toolholder.In this way either the one or the other side or cutting-edge of the tool(1 is brought into action, according to the direction of the motion ofthe planing-table.

In the carriage D there is placed a second screw-spindle, 0, on the sideof the spindle 0*, and connected with the same by gearing u a.

These gear-wheels au turn in the upper part 100 of the carriage D, andthe spindles 0 0 pass through the same and are connected thereto bysuitable feathers.

The spindle 0 has for its object to regulate the position of thecarriage t, by passing through a boss, 0, attached to the carriage it,while. the spindle 0 produces the oscillation of the tool-holder 1), inthe manner above described.

projection at; and with tool-holder 1), having socket p, and'with rod Zand collar m, substantially as and for the purpose described.

2. The combination of cross-slide A, operated by feed-screw C, with thespindle 0 bevelgear i wheels k 70, rod 1, and shaft 7, the shaft f andscrew 0 receiving motion from rod a by means of intermediate gearing,substantially as specified.

3. The combination of tool-holder p, oscillating 011 centers 0- r withreciprocating 25 spindle 0, rod Z, collars m n, and with screw 0 andwheels uu as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two 30 subscribing witnesses.

GUSTAV EDMUND REINHARDT.

\Vitnesses:

EDMUND BACH, OTTO GUNTHER.

